Introducing the amazing ecosystem sphere, the world’s first totally enclosed ecosystem. A complete, self-contained and self-sustaining miniature universe encased in a clear glass shell. You really have to see it to believe it! Your ecosystem contains live marine shrimp, algae and bacteria, all in filtered sea water. Because it is self sustaining, there is no need to feed the life within, so it requires no maintenance. Simply display this fine piece of art in a safe environment with lots of indirect light and admire the beauty of your unique, closed aquarium.